11-CURRENT r275641 panic: Unrecoverable machine check exception

[Ivan Klymenko]

В Mon, 15 Dec 2014 17:49:54 +0000
"Rang, Anton" <anton.rang at isilon.com> пишет:

> > I certainly could be wrong - but how to know for sure the cause of
> > the panic?
> 
> > MCA: CPU 0 UNCOR PCC OVER DCACHE L2 DRD error
> > MCA: Address 0xbd8d4cc0
> > MCA: Misc 0x30e3000086
> 
> The "root cause" may be hard to determine, but the immediate cause
> was helpfully decoded by the kernel. (Though I don't know whether all
> of the model-specific fields were decoded.)
> 
> UNCOR = uncorrected error
> PCC = processor context corrupted (can't safely continue to execute,
> thus the panic) OVER = error overflow (hmmm, multiple errors occurred)
> DCACHE L2 DRD = data being read from L2 data cache
> 
> The miscellaneous register indicates that 0xbd8d4cc0 is a physical
> address.
> 
> So this looks like a processor failure. If it is repeatable, though,
> it may indicate either failed hardware or some problem in configuring
> the processor (though I'm not sure how that could lead to a cache
> error).
> 
> Anton

Thank you.